2000redrocket
Pro
Posts: 1662
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posted May 27, 2011 09:01 AM
tps voltage
what are your guys tps voltages running at wide open throttle
(test between the two wires not the middle to ground on the frame)
  
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2000redrocket
Pro
Posts: 1662
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posted May 28, 2011 04:57 AM
come on guys........... i am at around 4.3x and am wondering if it is not getting to the full throttle voltage due to the tps failing.
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trganey
Expert Class
Posts: 196
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posted May 30, 2011 01:21 AM
FUEL SYSTEM (DFI) 3-45
Main Throttle Sensor (Service Code 11)
The main throttle sensor is a rotating variable resistor that
change output voltage according to throttle operating. The
ECU senses this voltage change and determines fuel injection
quantity, and ignition timing according to engine rpm,
and throttle opening.
Input Terminal [A]
Output Terminal
Ground Terminal [C]
Main Throttle Sensor Removal/Adjustment
CAUTION
Do not remove or adjust the main throttle sensor [A]
since it has been adjusted and set with precision at
the factory.
Never drop the throttle body assy, especially on a
hard surface. Such a shock to the sensor can damage
it.
Input Voltage Inspection
NOTE
Be sure the battery is fully charged.
• Turn the ignition switch OFF.
• Remove the ECU (see ECU Removal). Do not disconnect the ECU connectors.
• Connect a digital meter [A] to the connectors , using
the needle adapter set.
Special Tool - Needle Adapter Set: 57001-1457
Main Throttle Sensor Input Voltage
Connections to ECU Connector
Meter (+) BL lead (terminal 7)
Meter (–) BR/BK lead (terminal 34)
• Measure the input voltage with the engine stopped, and
with the connectors joined.
• Turn the ignition switch ON.
Input Voltage at ECU Connector
Standard: DC 4.75 ∼ 5.25 V
• Turn the ignition switch OFF.
If the reading of input voltage is less than the standard,
check the ECU for its ground, and power supply (see ECU
Power Supply Inspection) and wiring shorted.
If the input voltage is within the standard range, check the
input voltage at the main throttle sensor connector.
3-46 FUEL SYSTEM (DFI)
Main Throttle Sensor (Service Code 11)
• Remove the right fairing cover (see Fairing Cover Removal
in the Frame chapter).
• Disconnect the main throttle sensor connector [A].
• Connect the harness adapter [A] between the harness
connector and main throttle sensor connector.
Special Tool - Throttle Sensor Setting Adapter: 57001
-1538
• Connect a digital meter to the harness adapter leads.
Main Throttle Sensor Input Voltage
Connections to Adapter
Meter (+) W (sensor BL) lead
Meter (–) BK (sensor BR/BK) lead
• Measure the input voltage with the engine stopped, and
with the connector joined.
• Turn the ignition switch ON.
Input Voltage at Sensor
Standard: DC 4.75 ∼ 5.25 V
• Turn the ignition switch OFF.
If the reading is out of the range, check the wiring (see
wiring diagram in this section).
If the reading is good, check the output voltage of the
sensor.
FUEL SYSTEM (DFI) 3-47
Main Throttle Sensor (Service Code 11)
Output Voltage Inspection
• Measure the output voltage at the ECU in the same way
as input voltage inspection. Note the following.
Digital Meter [A]
Connector
Special Tool - Needle Adapter Set: 57001-1457
Main Throttle Sensor Output Voltage
Connections to ECU Connector
Meter (+) Y/W lead (terminal 26)
Meter (–) BR/BK lead (terminal 34)
• Start the engine and warm it up thoroughly.
• Check idle speed to ensure throttle opening is correct.
Idle Speed
Standard: 1 100 r/min (rpm)
If the idle speed is out of the specified range, adjust the
idle speed (see Idle Speed Inspection in Periodic Maintenance
chapter).
• Turn the ignition switch OFF.
• Measure the output voltage with the engine stopped, and
with the connector joined.
• Turn the ignition switch ON.
• Measure the output voltage when the throttle is fully
opened or completely closed.
Output Voltage at ECU
Standard: DC 0.63 ∼ 3.91 V (at idle throttle opening to
full throttle opening)
NOTE
The throttle sensor is operating correctly if the following
voltages are obtained:
• DC 0.63 V (or slightly higher) with the throttle at the
idle position.
• DC 3.91 V (or slightly lower) with the throttle at the fully
open position.
CAUTION
Do not remove or adjust the main throttle sensor.
It has been adjusted and set with precision at the
factory.
Never drop the sensor can especially on a hard surface.
A shock to the sensor can damage it.
3-48 FUEL SYSTEM (DFI)
Main Throttle Sensor (Service Code 11)
NOTE
The standard voltage refers to the value when the voltage
reading at the Input Voltage Inspection shows 5V
exactly.
When the input voltage reading shows other than 5V,
derive a voltage range as follows.
Example:
In the case of a input voltage of 4.75 V.
0.63 × 4.75 ÷ 5.00 = 0.60 V
3.91 × 4.75 ÷ 5.00 = 3.71 V
Thus, the valid range is 0.60 ∼ 3.71 V
If the output voltage is within the standard range, check
the ECU for its ground, and power supply (see ECU
Power Supply Inspection).
If the ground and power supply are good, replace the ECU
(see ECU section).
If the output voltage is far out of the standard range (e.g.
when the wiring is open, the reading is 0 V), check the
output voltage again at the sensor connector.
FUEL SYSTEM (DFI) 3-49
Main Throttle Sensor (Service Code 11)
• Disconnect the main throttle sensor connector and connect
the harness adapter [A] between the harness connector
and main throttle sensor connector.
Special Tool - Throttle Sensor Setting Adapter: 57001
-1538
• Connect a digital meter to the harness adapter leads.
Throttle Sensor Output Voltage
Connections to Adapter
Meter (+) R (sensor Y/W) lead
Meter (–) BK (sensor BR/BK) lead
• Measure the sensor output voltage with the engine
stopped, and with the connector joined.
• Turn the ignition switch ON.
• Measure the output voltage when the throttle is fully
opened or completely closed.
Output Voltage at Sensor
Standard: DC 0.63 ∼ 3.91 V (at idle throttle opening to
full throttle opening)
NOTE
The throttle sensor is operating correctly if the following
voltages are obtained:
• DC 0.63 V (or slightly higher) with the throttle at the
idle position.
• DC 3.91 V (or slightly lower) with the throttle at the fully
open position.
CAUTION
Do not remove or adjust the main throttle sensor.
It has been adjusted and set with precision at the
factory.
Never drop the sensor, especially on a hard surface.
A shock to the sensor can damage it.
NOTE
The standard voltage refers to the value when the voltage
reading at the Input Voltage Inspection shows 5V
exactly.
When the input voltage reading shows other than 5V,
derive a voltage range as follows.
Example:
In the case of a input voltage of 4.75 V.
0.63 × 4.75 ÷ 5.00 = 0.60 V
3.91 × 4.75 ÷ 5.00 = 3.71 V
Thus, the valid range is 0.60 ∼ 3.71 V
• Turn the ignition switch OFF.
If the reading is out of the standard range, inspect the
main throttle sensor resistance.
If the output voltage is normal, check the wiring for continuity
(see wiring diagram in this section).
3-50 FUEL SYSTEM (DFI)
Main Throttle Sensor (Service Code 11)
Resistance Inspection
• Turn the ignition switch OFF.
• Disconnect the main throttle sensor connector.
• Connect a digital meter [A] to the main throttle sensor
connector .
• Measure the main throttle sensor resistance.
Main Throttle Sensor Resistance
Connections: BL lead [C] BR/BK lead [D]
Standard: 4 ∼ 6 k
If the reading is out of the range, replace the throttle body
assy (see Throttle Body Assy section).
If the reading is within the range, but the problem still
exists, replace the ECU (see ECU section).
Main Throttle Sensor Circuit
1. ECU
2. Subthrottle Valve Actuator
3. Subthrottle Sensor
4. Main Throttle Sensor
5. Water-proof Joint 2
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2000redrocket
Pro
Posts: 1662
|
posted May 30, 2011 06:18 AM
so it is looking like my tps is not telling my ecu is at full throttle.
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trganey
Expert Class
Posts: 196
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posted May 30, 2011 07:28 AM
Looks that way. Some time in the future I've got to rig up a display for the TPS so when I start using the mechanical throttle limiter I'll be able to log and duplicate settings. Should be a lot of fun. LOL
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2000redrocket
Pro
Posts: 1662
|
posted June 08, 2011 02:55 PM
well i got a new one. full boggie was 4.25 vdc so i installed my stock unmolested ecu and the same voltage. so i am not testing something corectly . but i do now have a spare tps i am thinking.
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